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image, radiance or imagery, radiance, land surface, Maine, United States, imageryBaseMapsEarthCover
For aerial orthoimagery over large areas or areas where no digital orthophotoquadrangles or other higher resolution orthophotography are available, and for remote sensing purposes.
These SPOT10 images of Maine are a statewide USA Select SPOTView product of the SPOT Image Corporation. The tonal balanced, 30'x30' frames are designed to be load-n-go into GIS and image processing systems. The source imagery is SPOT PAN, panchromatic 10 meter data. Images are orthorectified to an accuracy of 12 meters or better, and range in date from April 30, 1998 to September 7, 2001. Most images are from leaf-on periods, but a few are from late October and early December.
Credit should always be given to the data source and/or originator when the data is transferred or printed.
Users must assume responsibility in determining the usability of this data for their purposes. Digital maps retain the accuracy of their source materials. The best use of data mapped at scales of 1:500,000 and 1:250,000 is in statewide planning and studies; at 1:100,000 in regional planning and studies; at 1:62,500 and 1:24,000 in detailed studies and local planning; and at 1:12,000 and 1:5,000 or larger scales in parcel level studies and detailed local planning. In the use of Maine GIS data, please check sources, scale, accuracy, currentness and other available information. Please confirm that you are using the correct copy of both data and metadata from the Maine GIS Data Catalog. Updates, corrections, and feedback, incorporated in the Maine GIS database are made in accordance with "Data Standards for Maine Geographic Information Systems", 2002, and coordinated by MEGIS
Extent
There is no extent for this item.
| Maximum (zoomed in) | 1:5,000 |
| Minimum (zoomed out) | 1:150,000,000 |
Monday through Friday
Credit should always be given to the data source and/or originator when the data is transferred or printed.
ground condition
Monday through Friday
Users must assume responsibility to determine the usability of this data for their purposes.
These data are LICENSED, not sold, and are available for share to all levels of government and state universities, and contractors working for those licensed categories, on government and university projects only. Distribution is prohibited unless license conditions are met and confirmed with the Maine Office of Geographic Information Systems.
Users must assume responsibility in determining the usability of this data for their purposes. Digital maps retain the accuracy of their source materials. The best use of data mapped at scales of 1:500,000 and 1:250,000 is in statewide planning and studies; at 1:100,000 in regional planning and studies; at 1:62,500 and 1:24,000 in detailed studies and local planning; and at 1:12,000 and 1:5,000 or larger scales in parcel level studies and detailed local planning. In the use of Maine GIS data, please check sources, scale, accuracy, currentness and other available information. Please confirm that you are using the correct copy of both data and metadata from the Maine GIS Data Catalog. Updates, corrections, and feedback, incorporated in the Maine GIS database are made in accordance with "Data Standards for Maine Geographic Information Systems", 2002, and coordinated by MEGIS
30' x 30' tile sample, bangor-w
ground condition
These SPOT10 images of Maine are a statewide USA Select SPOTView product of the SPOT Image Corporation. The tonal balanced, 30'x30' frames are designed to be load-n-go into GIS and image processing systems. The source imagery is SPOT PAN, panchromatic 10 meter data. Images are orthorectified to an accuracy of 12 meters or better, and range in date from April 30, 1998 to September 7, 2001. Most images are from leaf-on periods, but a few are from late October and early December.
For aerial orthoimagery over large areas or areas where no digital orthophotoquadrangles or other higher resolution orthophotography are available, and for remote sensing purposes.
ground condition
These data are LICENSED, not sold, and are available for share to all levels of government and state universities, and contractors working for those licensed categories, on government and university projects only. Distribution is prohibited unless license conditions are met and confirmed with the Maine Office of Geographic Information Systems.
Users must assume responsibility in determining the usability of this data for their purposes. Digital maps retain the accuracy of their source materials. The best use of data mapped at scales of 1:500,000 and 1:250,000 is in statewide planning and studies; at 1:100,000 in regional planning and studies; at 1:62,500 and 1:24,000 in detailed studies and local planning; and at 1:12,000 and 1:5,000 or larger scales in parcel level studies and detailed local planning. In the use of Maine GIS data, please check sources, scale, accuracy, currentness and other available information. Please confirm that you are using the correct copy of both data and metadata from the Maine GIS Data Catalog. Updates, corrections, and feedback, incorporated in the Maine GIS database are made in accordance with "Data Standards for Maine Geographic Information Systems", 2002, and coordinated by MEGIS
Credit should always be given to the data source and/or originator when the data is transferred or printed.
The USA Select SPOT10 product for Maine was delivered in 30'x30' frames in GeoTIFF SPOTView product format. One half the size of a USGS 1:100,000 scale 30 x 60 minute series, the files are stored on the Maine GIS server in directories labeled <100k tile> -e and <100k tile>-w. A statewide image mosaic is served to Maine GIS SDE users as the MEGIS.Spot10 SDE layer.
The data follows SPOTView specifications for a positional (horizontal) accuracy of 12 meters or better with 90% confidence.
SPOTView specifications for a positional (horizontal) accuracy.
The USA Select product is a statewide tonal balanced, 30'x30' SPOTView product designed to be load-n-go into GIS and image processing systems. The source imagery is SPOT PAN 10 m data.
SCENE SELECTION:
Fall/Winter/Spring (leaf-off) scenes were preferred, but summer (leaf-on) imagery was used if scene gaps were present.
SCENE DATABASE:
The "scenelat.shp" file delivered with the product contains ARC/VIEW shape files that include detailed information of the SPOT PAN scenes that were processed to create the final product. This file is unprojected. The "sceneutm.shp" file contains ARC/VIEW shape files that have the same information in UTM projection. The attached "sc_met.doc" describes the most commonly used fields of the scenes file.
FRAMES:
The dataset was provided as 30'x30' frames. These frames were defined as quadrants of the USGS 1 deg. x 1 deg. grid and were produced for all 30'x30' cells which intersect with the state boundary including coastal islands. Data file names on the delivered product were composed as follows: The 1st 3 digits refer to the Latitude and the 4th - 7th digits to the Longitude of the lower right corner of the 1 deg. by 1 deg. block in which it belongs. The 8th digit is the 30'x30' tile number as determined by the tile's position in the 1 deg. x 1 deg. block. Tile 1 is in the upper left, tile 2 in the upper right, tile 3 in the lower left, tile 4 in the lower right. File name example: N34W1094.TIF. The "framelat.shp" file contains ARC/VIEW shape files that indicate the extent and file name of each 30'x30' frame. This file is unprojected. The "frameutm.ahp" file contains ARC/VIEW shape files that indicate the same information in UTM projection.
FILE FORMATS:
Files are in GEOSPOT VERSION 4.1 format. File format consists of these files: framename.TIF - This is the imagery file, imagery is in GEOTIFF untiled format. This file is compliant with the TIFF version 6 specifications issued by Aldus/Adobe Corporation in June 1992. Contains the georeferencing tags compliant with the GeoTIFF specification 1.0 issued by NASA Jet Propulsion Laboratory in September, 1995.
ASCII .DSC File - lists all files on media
ASCII .REP File - the first file of each product is the Geospot Report File. It has the same name as the product and describes the content of the product it belongs to: product general information, structure definition (numbering and names of files), cartographic parameters and framing information.
ASCII .HDR File - all pertinent georeferencing information for the image data including file sizes in pixels (columns) and lines (rows), pixel size, and map coordinates for georeferencing the upper left corner of the image file.
ASCII .CLR File - prescribed standard lookup table for image display. Use of this file is optional. This file can also be used for pseudo-coloring an image or thematic map.
ASCII .RSC File - the Raster Source Description File provides information about the sources of the raster file (origin, sensors.)
SOFTWARE REQUIREMENTS:
The dataset requires a software package capable of loading and displaying SPOTView raster images. Most major GIS (Geographic Information Systems) and IP (Image Processing) software that work in the geographic domain are capable of loading, translating, and ingesting SPOTView data.
PROJECTION INFORMATION:
This dataset is provided in UTM NAD83.
ACCURACY:
The provided dataset follows our SPOTView specifications for positional (horizontal) accuracy of 12 meters or better with 90% confidence.
ADDITIONAL INFORMATION:
For additional information about this product contact
SPOT Image Corporation
1897 Preston White Drive
Reston, VA 20191
Ph. 1 800 ASK SPOT
Users must assume responsibility to determine the usability of this data for their purposes.
The Maine Office of GIS and the GeoLibrary Board provide web mapping services to distribute aerial photos and other digital data. A WMS is not a web application which you can see in a web browser; rather, it requires you to add the service to a GIS software application.
http://www.maine.gov/geolib/wms.htm